[Veritas-bu] Robot disappeared from OS

Dushyant Mehta scorpio21179 at gmail.com
Thu Feb 11 14:42:30 CST 2010


Scott,

we have 2 dual port hba's and of the hba can see the robot properly..See
this:

bash-3.00# fcinfo hba-port

HBA Port WWN: 10000000c9517ec6

        OS Device Name: /dev/cfg/c2

        Manufacturer: Emulex

        Model: LP10000

        Firmware Version: 1.92a1

        FCode/BIOS Version: 1.50a9

        Type: N-port

        State: online

        Supported Speeds: 1Gb 2Gb

        Current Speed: 2Gb

        Node WWN: 20000000c9517ec6

*HBA Port WWN: 10000000c9596c56*

      *  OS Device Name: /dev/cfg/c3*

        Manufacturer: Emulex

        Model: LP10000

        Firmware Version: 1.92a1

        FCode/BIOS Version: 1.50a9

        Type: N-port

        State: online

        Supported Speeds: 1Gb 2Gb

        Current Speed: 2Gb

        Node WWN: 20000000c9596c56

HBA Port WWN: 10000000c95ede57

        OS Device Name: /dev/cfg/c6

        Manufacturer: Emulex

        Model: LP10000

        Firmware Version: 1.92a1

        FCode/BIOS Version: 1.50a9

        Type: N-port

        State: online

        Supported Speeds: 1Gb 2Gb

        Current Speed: 2Gb

        Node WWN: 20000000c95ede57

HBA Port WWN: 10000000c95ee0be

        OS Device Name: /dev/cfg/c5

        Manufacturer: Emulex

        Model: LP10000

        Firmware Version: 1.92a1

        FCode/BIOS Version: 1.50a9

        Type: N-port

        State: online

        Supported Speeds: 1Gb 2Gb

        Current Speed: 2Gb

        Node WWN: 20000000c95ee0be

 *From the HBA :*

emlxadm> get_dev_list

 -----------------------------------------------

Device 0:

Dtype: 0

FC4_type[proto]: 0x00000100, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000

State: Logged_In

 D_id: 615813

 LILP: 0

 Hard Addr: 0

 WWPN: 500104f0005859d1

 WWNN: 500104f0005859d0

-----------------------------------------------

Device 1:

Dtype: 0

FC4_type[proto]: 0x00000100, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000

State: Logged_In

D_id: 615913

LILP: 0

Hard Addr: 0

WWPN: 500104f0005859db

WWNN: 500104f0005859d9

 -----------------------------------------------

Device 2:

Dtype: 0

FC4_type[proto]: 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000

*State: Logged_In*

D_id: 615c13

LILP: 0

Hard Addr: 0

*WWPN: 500104f0005859c8*

 WWNN: 500104f0005859c7

 -----------------------------------------------

Device 3:

Dtype: 0

FC4_type[proto]: 0x00000100, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000

State: Logged_In

 D_id: 615d13

LILP: 0

Hard Addr: 0

WWPN: 500104f0005859d4

WWNN: 500104f0005859d3
---------------------------------------------------

HBA sees the robot and the state is logged in. That means there is no issue
with the HBA.



On Thu, Feb 11, 2010 at 3:32 PM, Chapman, Scott <Scott.Chapman at icbc.com>wrote:

>  You aren’t going to see anything with sgscan unless cfgadm –al sees the
> changer and the tape.  I would work more with SUN to confirm there is
> nothing wrong with the HBA…maybe try a diff HBA port.
>
>
>
> *Scott Chapman*
>
> Senior Technical Specialist
>
> Storage and Database Administration
>
> ICBC - Victoria
>
> Ph:  250.414.7650  Cell:  250.213.9295
>
> *From:* veritas-bu-bounces at mailman.eng.auburn.edu [mailto:
> veritas-bu-bounces at mailman.eng.auburn.edu] *On Behalf Of *Dushyant Mehta
> *Sent:* Thursday, February 11, 2010 12:18 PM
>
> *To:* veritas-bu at mailman.eng.auburn.edu
> *Subject:* [Veritas-bu] Robot disappeared from OS
>
>
>
> All,
>
>
> We have STK L180 tape library connected to a Solaris 10 master/media
> server.Until 3 days back we were able to see tape drives and robots  and now
> the robot has disappeared.  Initially when we were seeing the robot, we were
> not able to configure it in netbackup. when we did a scan -changer on that
> robot it used to report "0" drives and "0" slots whereas the library has 6
> drives and 84 slots. To fix that problem Symantec suggested rebuilding the
> sg driver and told me to remove everything from /dev/rmt/*cbn and /dev/sg
> directories. After doing that and rebooting the master with a
> reconfiguration we lost the robot.
>
> Everything is connected to McData switch and on the switch side I see all
> the ports logging in without any error.However when i run cfgadm -al it
> shows this for the robot wwn :
>
> c3::500104f0005859c8        unavailable      connected     configured
> failed
>
> I have been working with Symantec and Sun and both are unable to identify
> the problem.
>
> I have tried resetting hba, resetting the robot, rebooting the complete
> library etc but still sgscan and scan -changer does not show the robot.
>
> I have 2 questions :
>
> 1) When the robot does not report on correct info in scan -changer command,
> what can be the issue ?
> 2) What can we do to see the robot back ?
>
> We are on NBU 6.0 MP6, with Solaris 10 on master, Emulex HBA, Mc Data
> Switch, STK L180 tape library.
>
> Thanks,
>
> Dushyant Mehta
>
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